Siemens 3SU1801-0NH00-4NB2

Enclosure for command devices, 22 mm, round, enclosure material plastic, enclosure top part yellow, 1 command point plastic, A=Emergency stop mushroom pushbutton red, 40 mm, rotate-to-unlatch, 2 NC, spring-type terminal, floor mounting, silver label, black font, with graphic symbol: EMERGENCY STOP, M12 connector (5-pole) bottom, insulated reserve conductors Pin assignment: Pin1=21, Pin2=11, Pin3=n.c., Pin4=22, Pin5=12 Label enclosed